Global Patent Index - EP 0351785 B1

EP 0351785 B1 19940928 - Method and apparatus for introducing differential stresses during manufacture of endless flexible metallic casting belts for enhancing belt performance in continuous metal casting machines.

Title (en)

Method and apparatus for introducing differential stresses during manufacture of endless flexible metallic casting belts for enhancing belt performance in continuous metal casting machines.

Title (de)

Verfahren und Vorrichtung zum Erzeugen von differentiellen Spannungen bei der Herstellung von endlosen, flexiblen, metallischen Giessbändern zum Verbessern der Bandleistung in Stranggiessmaschinen.

Title (fr)

Méthode et appareillage pour provoquer des contraintes différentielles lors de la fabrication de bandes métalliques flexibles sans fin pour coulée continue en vue d'améliorer la performance des bandes utilisées dans les machines de coulée continue.

Publication

EP 0351785 B1 19940928 (EN)

Application

EP 89113161 A 19890718

Priority

US 22123088 A 19880719

Abstract (en)

[origin: EP0351785A1] The method and apparatus introduce differential stresses in wide, thin, revolving flexible metallic casting belts during their manufacture for enhancing their performance when employed in continuous metal casting machines. Certain areas, -- notably the two marginal areas -- of said belts are placed under greater residual longitudinal stretch than the greater main middle area of the belt defined by these more highly stretched margins using endless roller-stretch flattening or leveling with a work roller that is effectively larger in diameter toward its ends than in its middle zone for permanently stretching both margins relative to the main middle area, or using conventional cylindrical work rollers and heating (for thereby expanding and slacking) the middle area of the casting belt during such roller-stretch leveling while leaving the margins cold.

IPC 1-7

B22D 11/06

IPC 8 full level

B22D 11/06 (2006.01)

CPC (source: EP US)

B22D 11/0665 (2013.01 - EP US); B22D 11/0677 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0351785 A1 19900124; EP 0351785 B1 19940928; CA 1333002 C 19941115; DE 68918518 D1 19941103; US 4921037 A 19900501

DOCDB simple family (application)

EP 89113161 A 19890718; CA 605308 A 19890711; DE 68918518 T 19890718; US 22123088 A 19880719